Diagnosis of Osteoarthritis

There are no definitive tests to confirm osteoarthritis (OA). Your doctor may suspect OA based on symptoms, their pattern, and a physical exam. Imaging tests such as x-rays, ultrasound, or MRI scan may be done to confirm the diagnosis or assess the amount of damage. A joint with OA will have lost some of the normal space that exists between the bones (joint space) which will be visible on an imaging test.

Blood and joint fluids may be tested to rule out other joint disorders with similar symptoms, such as rheumatoid arthritis (RA), gout, or joint infections. Tests may include:

Revision Information

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

Osteoarthritis.
National Institute of Arthritis and Musculoskeletal and Skin Diseases
website. Available at:
http://www.niams.nih.gov/Health%5FInfo/Osteoarthritis/default.asp. Updated August 2013. Accessed December 1, 2014.